Combine pickup cleaner



March 28, 1950 H. LORENZ ETAL.

COMBINE PICKUP CLEANER 3 She'etS-Sheet 1 Filed om. 25, l1945 ATTD RN EYB H. LORENZ ETAL March28, 1950 l COMBINE PICKUP CLEANER 3 Sheets-Sheet 2 Filed Oct. 25, 1945 f 1 J 7. I .QQ

INVENTOR.

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COMBINE PICKUP CLEANER Filed oct. 25, 1945 s sheets-,sheet :s

INVENT OR. H//V 'NZ FRED L ORE N Z Patented Mar. 28, 1950 `UNITED STATES PATENT OFFICE CQMBINE PICKUP CLEANER Hans Lorenz and Fred Lorenz, Esmond, S. Dak.

Application October 25, 1945, Serial No. 624,400

1 Claim. (C1. 56--364) y The invention relates to a combine pick-up attachment, and more especially to a cleaner attachment for use on a combine pick-up mechanism.

The primary object of the invention is the provision of an attachment of this character, wherein the pick-up mechanism of a combine is relieved from choking and is automatically cleaned irrespective of the condition of the grain, Whether ripened, tough, matted, Weathered or otherwise in a poor condition infested with plant growths, as creeping jenny, buckwheat, weeds, sunflowers or other waste.

Another object of the invention is the provision of an attachment of this character, wherein its assembly enables the use thereof on any and all well known types of combines having the pick-up mechanism, the attachment being novel in construction and unique in the assembly of its parts, as the grain material will be carried directly over the drum, drum cover and into the auger of the combine, without matting or piling up action.

A further object of the invention is the provision of an attachment of this character, wherein the platform is maintained clean and there is no piling up of tough straw, this being had by a sickle, a plate and the arrangement for operating the sickle or cutting bar, as the latter keeps moving and cutting, thus eliminating the grain becoming matted or forming -a block to other incoming straw and grain.

A still-further object of the invention is the provision of an attachment oi this character, which is simple in construction, thoroughly reliable and efiicient in operation, strong, durable, automatic in the working thereof, and inexpensive to manufacture and install.

With these and other objects in view the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, which show the prelerred embodiment of the invention, and pointed out in the claim hereunto appended.

In the accompanying drawings- Figure l is a fragmentary elevation of a combine pick-up showing the attachment constructed in acordance with the invention applied.

Figure 2 is a top plan view partly in section.

Figure 3 is an enlarged sectional view taken approximately on the line 3--3 of Figure 2 looking in the direction of the arrows and showing additional parts of the combine.

Figure 4 is a fragmentary sectional View taken on the line 4-4 of Figure 3 looking in the direction of the arrows.

Figure 5 is a fragmentary sectional View taken on the line 5-5 of Figure 4 looking in the direction of the arrows.

Figure 6 is a plan view of the cleaner element.

Figure 7 is an enlarged sectional view taken on the line I--l of Figure 6 looking in the direction of the arrows.

Figure 8 is a plan View of the sickle.

Figure 9 is an end view oi Figure 8.

Figure 10 is an enlarged perspective view of an element of the invention.

Figure 11 is a, perspective view of one end piece for the sickle bed.

- Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, A designates generally a pick-up attachment as applied to a combine although it is applicable to a binder or other similar machinery, in which the the like, and in this instance the combine involves a header, a portion being denoted at B having an auger I0, and a sickle or cutter bar II, the former collecting the cut material and conveying it to a raddle or other suitable conveyor, not shown, by which it is transmitted to the threshing mechanism, which also isnot shown as it forms no part of the present invention.

- The pick-up mechanism A comprises a rotary cylinder I2 having la plurality of yieldably mounted pick-up fingers I3 projecting from the cylinder and in this instance inclined backwardly with relation to the direction of rotation of the said cylinder, which moves in a counterclockwise direction as viewed in Figure 3, as the machine is advanced to have the material in a ,-Windrow raised by the fingers and carried over the cylinder. Any material in contact with the cylinder I2 encounters a slotted stripper plate I4 which is curved in a close and partially overhanging position with respect to such cylinder, so as to urge the material along the length of the lingers I3 toward and oil the ends thereof Without any tendency toward catching or pinching material between the plate and lingers due to the'movement of the lingers.

superimposed on this stripper plate I4 and partially overlying the innermost ends of the tines I5 thereof created by the slots I 6 therebetween is a comb tooth-like cleaner bar or plate I'l, which is made secure by fasteners yI8 to the said stripper plate, and upon such bar or plate are secured at intervals longitudinally thereof a series of sickle or cutter bar guides I9, in which reciprocates the sickle or cutter bar II, as best seen in Figure 2 of the drawings.

The sickle or cutter bar I I is operated by a pitman connection 20 actuated in suitable or well known manner, not shown.

The drive for the cylinder I2 may be effected in any suitable manner, and inasmuch as the sickle or cutting element normally on the harvester portion of the combine is not used while the pick-up is in operation and the drive thereto is disconnected therefrom. The drive for 'the cylinder I2 is taken from the mechanism already on the combine for driving the sickle.

A sickle or cutter bar head 2?, ls carried by a bracket 23 provided with a reinforcement member 24 which is aiiixed to the underside thereof. The bracket is affixed to a shoe 9 forming a part of the pick-up mechanism.

The cleaner bar or plate II functions f or keepu ing the cylinder and sickle or lcutter har cleaned at all times, and allows the lingers I3 to carry the grain directlyover the cylinder and into the auger IS, without matting or pile-up irrespective of the condition of the grain, whether Varying in degrees of ripeness, toughness, matted, weathered, and generally in a very poor condition for pick-up. Also it is possible to pick up grain infested with such plant growths as creeping jenny, buckwheat, weeds and sunflowers. The sickle or cutter bar II, which runs continuously, cuts the matted grain into proper proportions, so that it runs back into the auger and is carried into the combine itself for threshing. The sickle or cutter bar itself is not, however, sufficient to handle the situation 4 and for this reason it is necessary to have the bar or plate Il' with its comb teeth 25 related to such sickle or cutter bar, and in this manner keeps the platform clean and there is no piling up of tough straw, the straw moving smoothly from the ground around and over the cylinder, and into the auger, the sickle -or cutter being active for keeping the grain out and from becoming matted or forming a block to other incoming straw and grain.

What is claim-ed is:

In :an attachment for a combine pick-up cleaner having a rotary cylinder with spaced pikup ngers, an auger, a cutter bar, and a stripper rplate having arcuate tines extended upwardly f, means mounting the said cutter bar on said cleaner bar.

HANS LORENZ. FRED LORENZ.

l REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date Krause July 13, 1943 Number 

